Global Patent Index - EP 0904257 B1

EP 0904257 B1 20000809 - CALCIUM NITRATE BASED FERTILIZER

Title (en)

CALCIUM NITRATE BASED FERTILIZER

Title (de)

DÜNGEMITTEL AUS KALZIUMNITRAT

Title (fr)

ENGRAIS A BASE DE NITRATE DE CALCIUM

Publication

EP 0904257 B1 20000809 (EN)

Application

EP 97922215 A 19970514

Priority

  • NO 9700126 W 19970514
  • NO 962119 A 19960524

Abstract (en)

[origin: WO9745382A1] Homogeneous calcium nitrate based fertilizers containing sulphur, and method for their preparations. Solid gypsum and/or a slow reacting sulphate mineral is mixed with melted calcium nitrate fertilizer at a temperature of 90-110 DEG C and kept at this temperature for 3-15 minutes and subsequently particulated at a temperature of 80-110 DEG C. The particulation by prilling is performed at 95-110 DEG C and the particulation by granulation is performed at 90-110 DEG C. The fertilizer is a homogeneous composition of a calcium nitrate fertilizer and gypsum and/or a slow reacting sulphate mineral comprising 0.1-5.0 weight % SO4-S, 14-19 weight % water soluble calcium and 16-21 weight % total calcium, and 0-3.0 weight % water soluble magnesium. The fertilizer may contain microamounts of Se and/or Co, and/or micronutrients like Mn, Cu, B and Zn.

IPC 1-7

C05C 5/04; C05D 3/00; C05G 1/00

IPC 8 full level

C05C 5/04 (2006.01); C05G 1/00 (2006.01)

CPC (source: EP US)

C05C 5/04 (2013.01 - EP US)

C-Set (source: EP US)

C05C 5/04 + C05D 9/00 + C05D 9/02

Designated contracting state (EPC)

AT DE DK ES FI FR GB GR IE NL PT SE

DOCDB simple family (publication)

WO 9745382 A1 19971204; AT E195309 T1 20000815; AU 2794697 A 19980105; CZ 292236 B6 20030813; CZ 375998 A3 19990414; DE 69702760 D1 20000914; EP 0904257 A1 19990331; EP 0904257 B1 20000809; IL 127203 A0 19990922; IL 127203 A 20010913; NO 305939 B1 19990823; NO 962119 D0 19960524; NO 962119 L 19971125; PL 185085 B1 20030228; PL 330231 A1 19990510; PT 904257 E 20010131; RO 117909 B1 20020930; RU 2162073 C2 20010120; US 6171358 B1 20010109

DOCDB simple family (application)

NO 9700126 W 19970514; AT 97922215 T 19970514; AU 2794697 A 19970514; CZ 375998 A 19970514; DE 69702760 T 19970514; EP 97922215 A 19970514; IL 12720397 A 19970514; NO 962119 A 19960524; PL 33023197 A 19970514; PT 97922215 T 19970514; RO 9801608 A 19970514; RU 98123193 A 19970514; US 18086999 A 19990224